<template>
	<view class="ve-load-more">
		<view class="ve-load-more__img" v-show="status === 'loading' && showIcon">
			<view class="load1 load_item">
				<view :style="{background:color}" class="item"></view>
				<view :style="{background:color}" class="item"></view>
				<view :style="{background:color}" class="item"></view>
				<view :style="{background:color}" class="item"></view>
			</view>
			<view class="load2 load_item">
				<view :style="{background:color}" class="item"></view>
				<view :style="{background:color}" class="item"></view>
				<view :style="{background:color}" class="item"></view>
				<view :style="{background:color}" class="item"></view>
			</view>
			<view class="load3 load_item">
				<view :style="{background:color}" class="item"></view>
				<view :style="{background:color}" class="item"></view>
				<view :style="{background:color}" class="item"></view>
				<view :style="{background:color}" class="item"></view>
			</view>
		</view>
		<text class="ve-load-more__text" :style="{color:color}">
			{{status === 'more' ? contentText.contentdown : (status === 'loading' ? contentText.contentrefresh : contentText.contentnomore)}}
		</text>
	</view>
</template>

<script>
	export default {
		name: "ve-load-more",
		props: {
			status: {
				//上拉的状态：more-loading前；loading-loading中；noMore-没有更多了
				type: String,
				default: 'more'
			},
			showIcon: {
				type: Boolean,
				default: true
			},
			color: {
				type: String,
				default: "#777777"
			},
			contentText: {
				type: Object,
				default () {
					return {
						contentdown: "上拉显示更多",
						contentrefresh: "正在加载...",
						contentnomore: "没有更多数据了"
					};
				}
			}
		},
		data() {
			return {}
		}
	}
</script>

<style lang="stylus">
	.ve-load-more 
		display: flex;
		flex-direction: row;
		height: 80rpx;
		align-items: center;
		justify-content: center;
		.ve-load-more__text
			font-size:28rpx;
			color:#8B898E;
		.ve-load-more__img
			height: 24px;
			width: 24px;
			margin-right: 10px;
			&>.load_item
				position: absolute;
				.item 
					width: 6px;
					height: 2px;
					border-top-left-radius: 1px;
					border-bottom-left-radius: 1px;
					background:#8B898E;
					position: absolute;
					opacity: 0.2;
					transform-origin: 50%;
					animation: load 1.56s ease infinite;
					&:nth-child(1)
						transform: rotate(90deg);
						top: 2px;
						left: 9px;
					&:nth-child(2)
						transform: rotate(180deg);
						top: 11px;
						right: 0px;
					&:nth-child(3)
						transform: rotate(270deg);
						bottom: 2px;
						left: 9px;
					&:nth-child(4)
						top: 11px;
						left: 0px;
			.load1,.load2,.load3
				height: 24px;
				width: 24px;
			.load2 
				transform: rotate(30deg);
			.load3 
				transform: rotate(60deg);
			.load1 .item:nth-child(1)
				animation-delay: 0s;
			.load2 .item:nth-child(1)
				animation-delay: 0.13s;
			.load3 .item:nth-child(1) 
				animation-delay: 0.26s;
			.load1 .item:nth-child(2)
				animation-delay: 0.39s;
			.load2 .item:nth-child(2)
				animation-delay: 0.52s;
			.load3 .item:nth-child(2)
				animation-delay: 0.65s;
			.load1 .item:nth-child(3)
				animation-delay: 0.78s;
			.load2 .item:nth-child(3) 
				animation-delay: 0.91s;
			.load3 .item:nth-child(3)
				animation-delay: 1.04s;
			.load1 .item:nth-child(4)
				animation-delay: 1.17s;
			.load2 .item:nth-child(4) 
				animation-delay: 1.30s;
			.load3 .item:nth-child(4)
				animation-delay: 1.43s;
</style>
<style>
	@keyframes load {
		0% {
			opacity: 1;
		}
		100% {
			opacity: 0.2;
		}
	}
</style>
